package com.backend.springboot_project_demo.entity;

import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;

import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;


/**
 * 找出字符串中出现次数最多的字符
 */
@Setter
@ToString
@NoArgsConstructor
@AllArgsConstructor
public class TestTestTest {
    @NotBlank(message = "id cannot be null")
    private String id;
}
